Refer to the exhibit. 
An administrator replaced the NIC in a desktop PC with a new NIC. The NIC in the PC
configuration is set to “100 Mb Half.” Now the PC has intermittent connectivity and loss of
communication so the administrator began troubleshooting on the switch. Using the switch output
shown, what is the cause of the problem?
A.
Input flow control is off.
B.
Encapsulation is set to ARPA.
C.
The switch is set to full-duplex.
D.
The port is administratively down.
E.
Fast Ethernet is incompatible with a megabit NIC.
F.
The counters were not cleared after the hardware was replaced.
Explanation: